Abstract

Pulsed laser ablation of different surfaces in liquid environment has broad prospects to selectively synthesize nanoparticles (NPs) with specific optical properties, as well as morphology, size and composition. The dependence of the morphology and particle size on the pulse duration and other external conditions allows synthesizing nano-sized particles for various scientific, particularly, optical, and industrial needs. Most previous studies on ablation of metals in water have shown spherical shapes of NPs without elaboration on the effect of aging on those shapes. In this study, we demonstrate notable modification in the morphology of aluminum, indium, zinc and copper NPs during aging towards the non-spherical structures, contrary to other laser ablation-induced spherical NPs from different elements in the periodic table.

中文翻译：

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水中激光与物质相互作用过程中老化在非球形纳米结构形成中的作用

摘要

液体环境中不同表面的脉冲激光烧蚀具有广阔的前景，可以选择性地合成具有特定光学性质以及形态，尺寸和组成的纳米粒子（NP）。形态和粒度对脉冲持续时间和其他外部条件的依赖性允许合成纳米级的颗粒，以满足各种科学的需求，特别是光学和工业需求。以前有关消融水中金属的大多数研究表明，NPs呈球形，但没有详细说明老化对这些形状的影响。在这项研究中，我们证明了向非球形结构老化期间，铝，铟，锌和铜NP的形态发生了显着变化，这与周期表中不同元素的其他激光烧蚀诱导的球形NP相反。